105 IZA Discussion Papers
IZA Discussion Paper No. 602
published in: Applied Economics Quarterly, 48 (1), 2002, 67-84
IZA Discussion Paper No. 348
published in: Economics of Education Review, 2003, 22(4), 421-432
IZA Discussion Paper No. 180
published in: Labour, 2001, 15 (2), 237-255
IZA Discussion Paper No. 85
published in: Oxford Bulletin of Economics and Statistics, 2000, 62 (s1), 801-835
IZA Discussion Paper No. 57
published in: Journal of Human Resources, 2000, 35 (3), 550-569;
see IZA Reprints 54/00
see IZA Reprints 54/00